CN2500791Y - Oil storage device for roller bit - Google Patents
Oil storage device for roller bit Download PDFInfo
- Publication number
- CN2500791Y CN2500791Y CN 01249977 CN01249977U CN2500791Y CN 2500791 Y CN2500791 Y CN 2500791Y CN 01249977 CN01249977 CN 01249977 CN 01249977 U CN01249977 U CN 01249977U CN 2500791 Y CN2500791 Y CN 2500791Y
- Authority
- CN
- China
- Prior art keywords
- oil storage
- hole
- oil
- rock bit
- fuel tanking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to a roller bit oil storage device comprising an oil storage hole arranged on the palm, an oil storage sac, a protective cup and a gland wihch are arranged in the oil storage hole. The special points lie in that a hole shoulder at the middle part of the oil storage hole is of a flat and straight or approximately flat and straight shape. The hole shoulder plane cooperates with the seal turned-over edge at the upper end of the oil storage sac. A frustum shaped blank holder which turns backwards and outwards is arranged at the lower end of the protective cup. The frustum shaped blank holder cooperates with the upper surface of the seal turned-over edge of the oil storage sac. The utility model not only simplifies the processing operation of the oil storage hole, increases the precision and the surface quality thereof, but also ensures the seal performance of the oil storage hole and enhancing the working reliability of the oil storage device.
Description
The utility model relates to a kind of Fuel Tanking Unit that is used for the rock bit of oil, geological drilling, is the improvement to existing rock bit Fuel Tanking Unit.
The Fuel Tanking Unit of rock bit communicates with bit leg journel by the long oil hole, be conducted by the pressure transmission hole of bottom and the periphery of rock bit, constitute the oil storage sealing load bucking-out system of a rock bit therefrom, the pressure of exocoel in its bearing when the effect of this pressure compensating system not only is the work of balance rock bit, and can prevent that mud from entering in the bearing bore and prevent the leakage of lubricating grease, makes bearing bore keep sufficient lubricating status.The key that realizes above-mentioned functions just be in the Fuel Tanking Unit oil storage bag with can guarantee cooperating of oil storage hole to seal.Existing rock bit Fuel Tanking Unit includes gland, protection cup and oil storage bag, and oil storage bag and the oil storage hole position that is sealed and matched is arranged on the shoulder place, hole at oil storage hole middle part, by sealing the seal request of realizing them that cooperates of flange on hole shoulder and the oil storage bag.Yet the shoulder place, hole of existing oil storage hole all is designed to have the back taper hole on 23 ° of inclined-planes, this back taper hole existing problems are: one scalene cone processing difficulties, precision and finish are difficult to assurance, thereby influence the airtight quality of oil storage bag and oil storage hole, and product percent defective height; The secondth, because there is acute angle in shoulder place, hole, produce easily that oil storage bag sealing position is cut off and the initial failure that causes rock bit.Therefore, the hermetically-sealed construction that presses for Fuel Tanking Unit improves.
The purpose of this utility model is the problem that exists at prior art and designs and a kind ofly be convenient to process and airtight quality is good, functional performance is stable rock bit Fuel Tanking Unit.
The purpose of this utility model is realized by following technical scheme: include the oil storage hole 9 that is opened on the bit leg 6 and be installed in the interior oil storage bag 5 of oil storage hole, protection cup 4 and gland 2; its difference is that the hole shoulder 8 at oil storage hole middle part is straight or straight substantially shape; match with the sealing flange of oil storage bag upper end in shoulder plane, hole; the lower end of protection cup is provided with the taper type flanging of digging to the outside back, taper type flanging and oil storage bag seal flange above match.
The beneficial effects of the utility model are: 1, change the shoulder of the hole in the oil storage hole into straight shape, be that hole shoulder face keeps vertical with axially bored line, this not only makes manufacturing procedure obtain simplifying, and has improved the machining accuracy and the quality of oil storage hole, the processing work efficiency is improved, has reduced percent defective simultaneously again; 2, because the improvement of machining accuracy and surface quality, help the hole shoulder and seal cooperating of flange with oil storage bag, a protection cup lower end is provided with the taper type flanging simultaneously, and exerting pressure by it can make below the sealing flange and periphery fits with shoulder position, oil storage hole hole securely, guarantees the sealing of oil storage hole; 3, hole shoulder is arranged to straight shape, can avoid the corner to the damage of oil storage bag, effectively prevent that the cut phenomenon of oil storage bag from taking place, thereby improve the functional reliability of rock bit Fuel Tanking Unit.
Fig. 1 is the positive view of an embodiment of the utility model.
Fig. 2 cuts open figure for the office of oil storage bag sealing flange among embodiment of the utility model.
Further specify embodiment of the present utility model below in conjunction with accompanying drawing; oil storage hole 9 is opened on the bit leg 6 of rock bit; the lower end of oil storage hole and pressure transmission hole 7 are conducted; the upper side of oil storage hole is to being connected with long oil hole 10; the other end in long oil hole communicates with bit leg journel; oil storage hole is the cylinder hole of inner small and outside big two joint shapes; the hole shoulder 8 at middle part is straight shape; promptly perpendicular with the axis of oil storage hole; the peviform oil storage bag 5 that rubber is made is equipped with in the below of oil storage hole; the upper end of oil storage bag is provided with the sealing flange; the sealing flange is made of flange 14 and sealing ring 13; the kernel of section of sealing ring can be higher than or flush plane on flange; sealing ring can be " O " sealing ring; the sealing flange matches with the hole shoulder; the top of oil storage bag disposes protection cup 4; the taper type flanging that dig outside being provided with backward protection cup lower end matches with oil storage bag sealing flange; the angle of digging of taper type flanging is 40～60 °; play the compression seal flange; the upper end of protection cup is provided with oil outlet; protection cup upper end is pushed down by gland 2; offer logical oil groove 11 and the oil outlet phase configuration of protecting cup on the gland lower surface; form oil discharge passage; make lubricating grease under the effect of oil storage bag, be extruded oil storage bag and the formed inner chamber of protection cup; enter oil storage hole top; the middle part of gland is provided with plug screw 1, and the upper end is equipped with sealing ring 3 by circlip 12 backstops on oil storage hole top; with the gland phase configuration, to guarantee the sealing of oil storage hole inner chamber.
Claims (7)
1, a kind of rock bit Fuel Tanking Unit; include the oil storage hole (9) that is opened on the bit leg (6) and be installed in the interior oil storage bag (5) of oil storage hole, protection cup (4) and a gland (2); the hole shoulder (8) that it is characterized in that the oil storage hole middle part is straight or straight substantially shape; match with the sealing flange of oil storage bag upper end in shoulder plane, hole; the lower end of protection cup is provided with the taper type flanging of digging to the outside back, taper type flanging and oil storage bag seal flange above match.
2, by the described rock bit Fuel Tanking Unit of claim 1, it is characterized in that the lower end of oil storage hole and pressure transmission hole (7) are conducted, the upper side of oil storage hole is to being connected with long oil hole (10).
3, by claim 1 or 2 described rock bit Fuel Tanking Units, it is characterized in that protecting glass lower end to be provided with the taper type flanging of the outside backward digging and seal flange with oil storage bag and match, the angle of digging of taper type flanging is 40～60 °.
4, by claim 1 or 2 described rock bit Fuel Tanking Units, it is characterized in that sealing flange by flange (14) and sealing ring (13) formation, the kernel of section of sealing ring is higher than or flushes plane on flange.
5, by the described rock bit Fuel Tanking Unit of claim 4, it is characterized in that sealing ring is " O " sealing ring.
6, by claim 1 or 2 described rock bit Fuel Tanking Units; it is characterized in that protecting the upper end of cup to be provided with oil outlet; protection cup upper end is pushed down by gland (2), offers logical oil groove (11) and the oil outlet phase configuration of protecting cup on the gland lower surface, forms oil discharge passage.
7, by the described rock bit Fuel Tanking Unit of claim 6, it is characterized in that the middle part of gland is provided with plug screw (1), the upper end is equipped with sealing ring (3) by circlip (12) backstop on oil storage hole top, with the gland phase configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01249977 CN2500791Y (en) | 2001-06-29 | 2001-06-29 | Oil storage device for roller bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01249977 CN2500791Y (en) | 2001-06-29 | 2001-06-29 | Oil storage device for roller bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2500791Y true CN2500791Y (en) | 2002-07-17 |
Family
ID=33660231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01249977 Expired - Lifetime CN2500791Y (en) | 2001-06-29 | 2001-06-29 | Oil storage device for roller bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2500791Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100400791C (en) * | 2005-11-28 | 2008-07-09 | 江汉石油钻头股份有限公司 | Additional pressure balance device of bearing cavity for tri-cone rotary drill bit |
| CN102619471A (en) * | 2012-04-29 | 2012-08-01 | 江西飞龙钻头制造有限公司 | Lubrication system of roller bit |
| CN105604495A (en) * | 2016-02-01 | 2016-05-25 | 成都维泰油气能源技术有限公司 | Eccentric wheel type antifriction and resistance-reducing device |
| CN109026875A (en) * | 2018-08-28 | 2018-12-18 | 豫北转向系统（新乡）有限公司 | A kind of unloading mechanism of hydraulic steering gear |
-
2001
- 2001-06-29 CN CN 01249977 patent/CN2500791Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100400791C (en) * | 2005-11-28 | 2008-07-09 | 江汉石油钻头股份有限公司 | Additional pressure balance device of bearing cavity for tri-cone rotary drill bit |
| CN102619471A (en) * | 2012-04-29 | 2012-08-01 | 江西飞龙钻头制造有限公司 | Lubrication system of roller bit |
| CN102619471B (en) * | 2012-04-29 | 2015-05-13 | 江西飞龙钻头制造有限公司 | Lubrication system of roller bit |
| CN105604495A (en) * | 2016-02-01 | 2016-05-25 | 成都维泰油气能源技术有限公司 | Eccentric wheel type antifriction and resistance-reducing device |
| CN109026875A (en) * | 2018-08-28 | 2018-12-18 | 豫北转向系统（新乡）有限公司 | A kind of unloading mechanism of hydraulic steering gear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20110629 Granted publication date: 20020717 |